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    1: /* Router advertisement
    2:  * Copyright (C) 2005 6WIND <jean-mickael.guerin@6wind.com>
    3:  * Copyright (C) 1999 Kunihiro Ishiguro
    4:  *
    5:  * This file is part of GNU Zebra.
    6:  *
    7:  * GNU Zebra is free software; you can redistribute it and/or modify it
    8:  * under the terms of the GNU General Public License as published by the
    9:  * Free Software Foundation; either version 2, or (at your option) any
   10:  * later version.
   11:  *
   12:  * GNU Zebra is distributed in the hope that it will be useful, but
   13:  * WITHOUT ANY WARRANTY; without even the implied warranty of
   14:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   15:  * General Public License for more details.
   16:  *
   17:  * You should have received a copy of the GNU General Public License
   18:  * along with GNU Zebra; see the file COPYING.  If not, write to the Free
   19:  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
   20:  * 02111-1307, USA.  
   21:  */
   22: 
   23: #ifndef _ZEBRA_RTADV_H
   24: #define _ZEBRA_RTADV_H
   25: 
   26: #include "vty.h"
   27: #include "zebra/interface.h"
   28: 
   29: /* Router advertisement prefix. */
   30: struct rtadv_prefix
   31: {
   32:   /* Prefix to be advertised. */
   33:   struct prefix prefix;
   34:   
   35:   /* The value to be placed in the Valid Lifetime in the Prefix */
   36:   u_int32_t AdvValidLifetime;
   37: #define RTADV_VALID_LIFETIME 2592000
   38: 
   39:   /* The value to be placed in the on-link flag */
   40:   int AdvOnLinkFlag;
   41: 
   42:   /* The value to be placed in the Preferred Lifetime in the Prefix
   43:      Information option, in seconds.*/
   44:   u_int32_t AdvPreferredLifetime;
   45: #define RTADV_PREFERRED_LIFETIME 604800
   46: 
   47:   /* The value to be placed in the Autonomous Flag. */
   48:   int AdvAutonomousFlag;
   49: 
   50:   /* The value to be placed in the Router Address Flag (RFC3775 7.2). */
   51:   int AdvRouterAddressFlag;
   52: #ifndef ND_OPT_PI_FLAG_RADDR
   53: #define ND_OPT_PI_FLAG_RADDR         0x20
   54: #endif
   55: 
   56: };
   57: 
   58: extern void rtadv_config_write (struct vty *, struct interface *);
   59: extern void rtadv_init (void);
   60: 
   61: /* draft-ietf-mip6-mipext-advapi-03 */
   62: 
   63: #ifndef ND_OPT_ADV_INTERVAL
   64: #define ND_OPT_ADV_INTERVAL	7   /* Adv Interval Option */
   65: #endif
   66: #ifndef ND_OPT_HA_INFORMATION
   67: #define ND_OPT_HA_INFORMATION	8   /* HA Information Option */
   68: #endif
   69: 
   70: #ifndef HAVE_STRUCT_ND_OPT_ADV_INTERVAL
   71: struct nd_opt_adv_interval {   /* Advertisement interval option */
   72:         uint8_t        nd_opt_ai_type;
   73:         uint8_t        nd_opt_ai_len;
   74:         uint16_t       nd_opt_ai_reserved;
   75:         uint32_t       nd_opt_ai_interval;
   76: } __attribute__((__packed__));
   77: #else
   78: #ifndef HAVE_STRUCT_ND_OPT_ADV_INTERVAL_ND_OPT_AI_TYPE
   79: /* fields may have to be renamed */
   80: #define nd_opt_ai_type		nd_opt_adv_interval_type
   81: #define nd_opt_ai_len		nd_opt_adv_interval_len
   82: #define nd_opt_ai_reserved	nd_opt_adv_interval_reserved
   83: #define nd_opt_ai_interval	nd_opt_adv_interval_ival
   84: #endif
   85: #endif
   86: 
   87: #ifndef HAVE_STRUCT_ND_OPT_HOMEAGENT_INFO
   88: struct nd_opt_homeagent_info {  /* Home Agent info */
   89:         u_int8_t        nd_opt_hai_type;
   90:         u_int8_t        nd_opt_hai_len;
   91:         u_int16_t       nd_opt_hai_reserved;
   92:         u_int16_t       nd_opt_hai_preference;
   93:         u_int16_t       nd_opt_hai_lifetime;
   94: } __attribute__((__packed__));
   95: #endif
   96: 
   97: extern const char *rtadv_pref_strs[];
   98: 
   99: #endif /* _ZEBRA_RTADV_H */